get_pca_loading: Get loading/rotation of PCA results

In chriszheng2016/zstexplorer: Explorer for China Stock Market Investment

Description

Get loading/rotation of PCA results

Usage

get_pca_loading(pca_res, pc_name_prefix = NULL, ncp = Inf)

Arguments

pca_res	An object of class PCA (FactoMineR); prcomp and princomp((stats); pca, dudi(adea4); epPCA(ExPosition).
pc_name_prefix	A character as name prefix of primary components in results, e.g PC for PC1...PCn. Default NULL means use original name of primary components.
ncp	A number of primary components kept in the results. Default Inf means all primary components.

Value

A matrix of loading or rotation of PCA results.

Examples

## Not run: 

# Result from prcomp
pca_res_prcomp <- prcomp(iris[, -5], scale = TRUE)
pca_loading <- get_pca_loading(pca_res_prcomp)

# Result from princomp
pca_res_princomp <- princomp(scale(iris[, -5]))
pca_loading <- get_pca_loading(pca_res_princomp)

# Result from FactoMineR::PCA
pca_res_PCA <- FactoMineR::PCA(iris[, -5], ncp = ncol(iris[, -5]), graph = FALSE)
pca_loading <- get_pca_loading(pca_res_PCA)

## End(Not run)

chriszheng2016/zstexplorer documentation built on June 13, 2021, 9:47 a.m.